Exchange-coupled IrMn/CoZrNb soft underlayers for perpendicular recording media

被引：11

作者：

Takenoiri, S ^{[1
]}

Enomoto, K

Sakai, Y

Watanabe, S

机构：

[1] Fuji Elect Corp Res & Dev Ltd, Device Technol Lab, Matsumoto, Nagano 3900821, Japan

[2] Fuji Elect Co Ltd, Adv Technol Dept, Matsumoto, Nagano 3900821, Japan

来源：

IEEE TRANSACTIONS ON MAGNETICS | 2002年 / 38卷 / 05期

关键词：

antiferromagnetic pinning layer; perpendicular recording media; spike noise;

D O I：

10.1109/TMAG.2002.801798

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

An antiferromagnetic Ir-Mn pinning layer was applied to reduce the spike noise that originates from domain walls in a Co-Zr-Nb soft magnetic layer of perpendicular recording media. Blocking temperature was 285 degreesC and exchange-coupling energy of 0.22 erg/cm(2) was obtained by arranging a Co-Fe layer between Ir-Mn and Co-Zr-Nb films, without any thermal treatments to enhance the exchange-coupling field. Spike noise was successfully reduced over the entire disk area using a rapid thermal annealing process, and the total amount of noise generated from a soft magnetic layer decreased as the exchange bias field increased.

引用

页码：1991 / 1993

页数：3

共 13 条

[1] Exchange-coupled CoZrNb/CoSm underlayer for perpendicular recording media [J].

Ando, T ;

Nishihara, T .

IEEE TRANSACTIONS ON MAGNETICS, 2001, 37 (04) :1228-1233

[2] MAGNETOTRANSPORT PROPERTIES OF MAGNETICALLY SOFT SPIN-VALVE STRUCTURES [J].

DIENY, B ;

SPERIOSU, VS ;

METIN, S ;

PARKIN, SSP ;

GURNEY, BA ;

BAUMGART, P ;

WILHOIT, DR .

JOURNAL OF APPLIED PHYSICS, 1991, 69 (08) :4774-4779

[3] Spin-valve giant magnetoresistive films with antiferromagnetic Ir-Mn layers [J].

Fuke, HN ;

Saito, K ;

Kamiguchi, Y ;

Iwasaki, H ;

Sahashi, M .

JOURNAL OF APPLIED PHYSICS, 1997, 81 (08) :4004-4006

[4] FeTaN/IrMn exchange-coupled multilayer films as soft underlayers for perpendicular media [J].

Jung, HS ;

Doyle, WD .

IEEE TRANSACTIONS ON MAGNETICS, 2001, 37 (04) :2294-2297

[5]

NAKAMURA F, 2000, PMRC 2000, P33

[6] Effect of underlayer roughness, grain size, and crystal texture on exchange coupled IrMn/CoFe thin films [J].

Pakala, M ;

Huai, Y ;

Anderson, G ;

Miloslavsky, L .

JOURNAL OF APPLIED PHYSICS, 2000, 87 (09) :6653-6655

[7] PtMn spin valve with synthetic ferrimagnet free and pinned layers [J].

Saito, M ;

Hasegawa, N ;

Tanaka, K ;

Ide, Y ;

Koike, F ;

Kuriyama, T .

JOURNAL OF APPLIED PHYSICS, 2000, 87 (09) :6974-6976

[8]

Saito M., 1997, J MAGN SOC JPN, V21, P505

[9]

Takahashi S., 1999, J MAGN SOC JPN, V23, P63

[10]

WATANABE S, 2001, 200190 IEICE MR

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